First atmospheric river (moderate intensity) is on tap 11/20-11/23 targeting the Sierra, Cascades and high volcanoes for feet of accumulation.
Overrun snow from this pattern hits ID/MT/WY/UT/CO through 11/28.
Snow Timeline:
Wasatch: Late 11/23-11/25(L/M)
Tetons: 11/19(L), 11/21(L), 11/23(M), 11/24-11/25(L), 11/28(H)
Colorado: 11/19(L), PM 11/24-11/26(H)
Tahoe: 11/20-11/21(H), PM 11/22-11/24(H), 11/25(M)
Interior BC: 11/20(L), 11/22-11/23(H), 11/27(H)
Overrun snow from this pattern hits ID/MT/WY/UT/CO through 11/28.
Snow Timeline:
Wasatch: Late 11/23-11/25(L/M)
Tetons: 11/19(L), 11/21(L), 11/23(M), 11/24-11/25(L), 11/28(H)
Colorado: 11/19(L), PM 11/24-11/26(H)
Tahoe: 11/20-11/21(H), PM 11/22-11/24(H), 11/25(M)
Interior BC: 11/20(L), 11/22-11/23(H), 11/27(H)